<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

 <!-- 放置标题图片 @是设置的别名-->
      <div class="title-container">
          <h3 class="title">
            <img src="@/assets/common/login-logo.png" alt="">
          </h3>
      </div>

      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="mobile"
          v-model="loginForm.mobile"
          placeholder="Username"
          name="mobile"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button class="loginBtn" :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登录</el-button>
      <!-- 不使用.native对于自定义的组件绑定事件不能直接触发 -->
      <!--.native 这个作用就是能在子组件上触发父组件的事件  -->
      <div class="tips">
          <span style="margin-right:20px;">账号: 13800000002</span>
          <span> 密码: 123456</span>
      </div>

    </el-form>
  </div>
</template>

<script>
export default {
  name: 'Login',
  data() {
    //自定义手机号校验规则
        const validMobile = (rule, value, callback) => {
          //callback回调函数,如果说校验失败就使用callback传入错误的对象,写上错误的描述
          //callback校验成功,callback不传入任何内容直接放行
      if (value==='') {
        callback(new Error('请输入手机号'))
      } else if(!/^1[3-9]\d{9}$/.test(value)) {
        callback(new Error('请输入正确的手机号!'))
      }else{
        callback()//校验通过放行
      }
    }
    return {
      loginForm: {
        mobile: '13800000002',
        password: '123456'
      },
      //验证规则对象
      loginRules: {
        // mobile: [{ required: true, trigger: 'blur', validator: validateUsername }],
        mobile: [
          // { required: true, trigger: 'blur',message:'请输入手机号'},
          // {pattern:/^1[3-9]\d{9}$/,message:'请输入正确的手机号',trigger:'blur'}
          {validator:validMobile,trigger:'blur'}//调用自定义函数
          ],
        password: [
            { required: true, trigger: 'blur',message:'请输入密码'},
          {min:6,max:16,message:'请输入长度6~16的密码',trigger:'blur'}
          ]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    async handleLogin() {
      //兜底校验
      this.$refs.loginForm.validate(async (valid)=>{
        // valid:true||false
        //整个表单所有的表单项校验通过了.那么valid接收的值是true
        //整个表单只要任何一个表单项校验失败返回false
        if(!valid) return  //校验失败
        //校验通过
        // console.log('ok');
        // axios状态码是4xx或者5xx会会主动抛出错误|| 网络连接超时
        try {
         
          //保存token到vuex中
          //this.$store.commit('模块名/mutations中的函数',res.data)
          await this.$store.dispatch('user/initToken',this.loginForm)
          //跳转首页
          //获取退出登录时传过来的页面路径
          const toUrl= this.$route.query.url
          this.$router.push(toUrl|| '/')
        } catch (error) {
          console.log(error,'error');
        }

      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray: #68b0fe;  // 将输入框颜色改成蓝色
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.7);//设置输入框背景颜色
    border-radius: 5px;
    color: #454545;
    /* reset element-ui css */
    .el-form-item__error {
      color: #fff
    }
  }
}
</style>

<!--scoped防止样式冲突,只能当前标签下使用-->
<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  background-image: url('~@/assets/common/login.jpg'); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
    .loginBtn {
      background: #407ffe;
      height: 64px;
      line-height: 32px;
      font-size: 24px;
    }
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
